[GitHub] [drill] cgivre commented on a diff in pull request #2714: DRILL-8364: Add Support for OAuth Enabled File Systems

[GitBox <gi...@apache.org>]

cgivre commented on code in PR #2714:
URL: https://github.com/apache/drill/pull/2714#discussion_r1043592053


##########
exec/java-exec/src/main/java/org/apache/drill/exec/store/dfs/BoxFileSystem.java:
##########
@@ -0,0 +1,459 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.drill.exec.store.dfs;
+
+import com.box.sdk.BoxAPIConnection;
+import com.box.sdk.BoxFile;
+import com.box.sdk.BoxFolder;
+import com.box.sdk.BoxFolder.Info;
+import com.box.sdk.BoxItem;
+import com.box.sdk.BoxSearch;
+import com.box.sdk.BoxSearchParameters;
+import com.box.sdk.PartialCollection;
+import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.drill.common.exceptions.UserException;
+import org.apache.drill.common.logical.security.CredentialsProvider;
+import org.apache.drill.exec.oauth.PersistentTokenTable;
+import org.apache.drill.exec.store.security.oauth.OAuthTokenCredentials;
+import org.apache.drill.exec.store.security.oauth.OAuthTokenCredentials.Builder;
+import org.apache.hadoop.fs.FSDataInputStream;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileStatus;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.permission.FsPermission;
+import org.apache.hadoop.util.Progressable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.ByteArrayOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+
+public class BoxFileSystem extends OAuthEnabledFileSystem {
+
+  private static final Logger logger = LoggerFactory.getLogger(BoxFileSystem.class);
+  private static final String TIMEOUT_DEFAULT = "5000";
+  private static final List<String> SEARCH_CONTENT_TYPES = new ArrayList<>(Collections.singletonList("name"));
+  private Path workingDirectory;
+  private BoxAPIConnection client;
+  private String workingDirectoryID;
+  private BoxFolder rootFolder;
+  private boolean usesDeveloperToken;
+  private final List<String> ancestorFolderIDs = new ArrayList<>();
+  private final Map<Path, BoxItem> itemCache = new HashMap<>();
+
+  /**
+   * Returns a URI which identifies this FileSystem.
+   *
+   * @return the URI of this filesystem.
+   */
+  @Override
+  public URI getUri() {
+    try {
+      return new URI("box:///");
+    } catch (URISyntaxException e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  /**
+   * Opens an FSDataInputStream at the indicated Path.
+   *
+   * @param inputPath the file name to open
+   * @param bufferSize the size of the buffer to be used.
+   * @throws IOException IO failure
+   */
+  @Override
+  public FSDataInputStream open(Path inputPath, int bufferSize) throws IOException {
+    client = getClient();
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+
+    BoxItem item = getItem(inputPath);
+    if (item instanceof BoxFile) {
+      BoxFile file = (BoxFile) getItem(inputPath);

Review Comment:
   Fixed



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